package main

import "fmt"

func if_opt() {
	a := 20

	// Not 
	// if a {

	// }

	if a < 30 {
		fmt.Println("a: ", a)
	} else {
		fmt.Println("a is bigger than 30")
	}

	switch a {
	case 20:
		fmt.Println("20")
	default:
		fmt.Println("default")
	}
}
